From the reliable comforts of Edwardian England to the chaos and destruction of the First World War, the early 20th century was a defining era in history, a time of unprecedented change, when old certainties were being torn down. The long golden afternoons of the pre-war years would be shattered by the most destructive war the world had ever known, and countless lives would be changed forever.

Set against this backdrop of impending catastrophe is the story of English aristocrat Christopher Tietjens, trapped in a marriage to an unfaithful wife, and caught between his commitment to the values of Toryism and his unspoken love for a fearless young suffragette.

Married to Sylvia (Rebecca Hall), a callous socialite who has given birth to a child that may not be his, English aristocrat Christopher Tietjens (Benedict Cumberbatch) becomes entranced by Valentine Wannop (Adelaide Clemens), a fearless young woman who unexpectedly turns his world upside down. As warbreaks out across Europe, Christopher, compelled by an outmoded code of conduct, feels obligated to remain loyal to his wife as he leaves a heartbroken Valentine to fight in France.

Christopher struggles to adapt to his new life as an army officer. When he returns to England briefly, suffering from shell shock, he is alarmed to discover himself the target of vicious rumors. Rejected by his father and brother, alienated from Sylvia, with only Valentine to support him, he attempts to hold on to sanity and meaning as the old world order collapses amidst tremendous upheaval.

Through Christopher's experiences, PARADE'S END captures the devastation of war and the end of Edwardian ideals, and bridges the gap between feudal England and the dawn of modernism.

Epic in range, the five parts of PARADE'S END were shot in more than a hundred locations across the UK and Belgium and required more than a hundred actors. The action moves from Groby, Christopher's family home in Yorkshire, to the corridors of power in Whitehall; from the drawing rooms of high society to the trenches of war.

"The thing that really attracted me to PARADE'S END was the scope," explains director SusAnna White, who is no stranger to battle scenes, having directed "Generation Kill," HBO's Emmy(R)-winning miniseries. "It shows how the political landscape and class landscape of England is changedforever by the events of the First World War, but it's told through three characters at its heart, with a unique love story at its center."